M2M through 사용 예제
from django.db import models
class Actor(models.Model):
first_name = models.CharField(max_length=45)
last_name = models.CharField(max_length=45)
date_of_birth = models.DateField()
class Meta:
db_table = 'actors'
class Movie(models.Model):
title = models.CharField(max_length=45)
release_date = models.DateField()
running_time = models.IntegerField()
actors = models.ManyToManyField(
"Actor",
through="Actor_Movie_Joined",
through_fields=("movie", "actor"),
)
class Meta:
db_table = 'movies'
class Actor_Movie_Joined(models.Model):
actor = models.ForeignKey("Actor", on_delete=models.CASCADE)
movie = models.ForeignKey("Movie", on_delete=models.CASCADE)
class Meta:
db_table = 'actors_movies'